Eric Berry and Taylor Mays, barring injury or terrible combine #'s, will be both Top Ten picks in 2010. Berry may be a Top 5 pick if he has a monster 2009 season, which I expect.
Malcolm Jenkins might slide to 17, lets not forget about him. Jenkins or Smith would be perfect for this team. With Revis in the line up the second CB will be covering the other teams second fastest WR, that right there makes Jenkins or S. Smith suitable choices for the Jets. And the one thing Revis doesn't have is height, that means S. Smith would be great for covering the bigger receivers. And people have given up on Lowery too soon, if he develops into a starter Smith and Jenkins can play free safety giving you one of the best secondaries in the league.
I think Sean Smith should be the selection. He has the physical attributes you want, is super athletic, and is versatile. I can see Rex maximizing his full potential, whether it's at CB or S or both.
After looking at Leonhard's new contract - all signs are pointing at a safety or a wide receiver in the first round. Leonhard's making similar money to most backups in the NFL...he may just be a punt returner and a defensive role player. This is good news for everyone hoping for Sean Smith. His versatility would allow Ryan to put Leonhard, Rhodes, and Smith on the field at the same time. Right now it's looking like Nicks or Smith.